Clausen has played in pro games and has had moments even if he's not great.
Stick any college kid - Newton, Luck, Gabbert, any of 'em - in the starting lineup of a pro game right now and they'd fold like an accordion.
Regarding Pike, I think we still don't know about him. You just can't reliably judge by last season.
Sheer speculation there. They would prob fair just as well as clausen, some better because of athletisim. Clausen was not given much help last year and was not athletic so he responded accordingly.